package com.echoesnet.echoesshortvideo.Utils;

import android.app.Activity;
import android.content.Context;
import android.hardware.Sensor;
import android.hardware.SensorEvent;
import android.hardware.SensorEventListener;
import android.hardware.SensorManager;
import android.os.Handler;
import android.os.Message;

import com.orhanobut.logger.Logger;

/**
 * Copyright (C) 2017 在线回声（天津）科技发展有限公司
 * 在线回声完全享有此软件的著作权，违者必究
 *
 * @author an
 * @version 1.0
 * @modifier
 * @createDate 2017/7/26 0026
 * @description
 */
public class ScreenSwitchUtils
{

    private static final String TAG = ScreenSwitchUtils.class.getSimpleName();

    private volatile static ScreenSwitchUtils mInstance;

    private Activity mActivity;

    // 1反向横屏 2 反着竖屏 3正的竖屏 4 正的横屏
    private String screenType = "4";

    private SensorManager sm;
    private OrientationSensorListener listener;
    private Sensor sensor;

    private SensorManager sm1;
    private Sensor sensor1;
    private OrientationSensorListener1 listener1;

    private Handler mHandler = new Handler()
    {
        public void handleMessage(Message msg)
        {
            switch (msg.what)
            {
                case 888:
                    int orientation = msg.arg1;
                    if (orientation > 45 && orientation < 135)
                    {
                        Logger.t("screentest").d("切换成横屏1");
                        screenType = "1";
                    } else if (orientation > 135 && orientation < 225)
                    {
                        Logger.t("screentest").d("切换成竖屏2");
                        screenType = "2";
                    } else if (orientation > 225 && orientation < 315)
                    {
                        Logger.t("screentest").d("切换成横屏3");
                        screenType = "3";
                    } else if ((orientation > 315 && orientation < 360) || (orientation > 0 && orientation < 45))
                    {
                        Logger.t("screentest").d("切换成竖屏4");
                        screenType = "4";
                    }
                    break;
                default:
                    break;
            }

        }

        ;
    };

    /**
     * 返回ScreenSwitchUtils单例
     **/
    public static ScreenSwitchUtils init(Context context)
    {
        if (mInstance == null)
        {
            synchronized (ScreenSwitchUtils.class)
            {
                if (mInstance == null)
                {
                    mInstance = new ScreenSwitchUtils(context);
                }
            }
        }
        return mInstance;
    }

    private ScreenSwitchUtils(Context context)
    {
        // 注册重力感应器,监听屏幕旋转
        sm = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
        sensor = sm.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        listener = new OrientationSensorListener(mHandler);

        // 根据 旋转之后/点击全屏之后 两者方向一致,激活sm.
        sm1 = (SensorManager) context.getSystemService(Context.SENSOR_SERVICE);
        sensor1 = sm1.getDefaultSensor(Sensor.TYPE_ACCELEROMETER);
        listener1 = new OrientationSensorListener1();
    }

    /**
     * 开始监听
     */
    public void start(Activity activity)
    {
        mActivity = activity;
        sm.registerListener(listener, sensor, SensorManager.SENSOR_DELAY_UI);
    }

    /**
     * 停止监听
     */
    public void stop()
    {
        sm.unregisterListener(listener);
        sm1.unregisterListener(listener1);
    }

    /**
     * @return 1反向横屏 2 反着竖屏 3正的竖屏 4 正的横屏
     */
    public String getScreenType()
    {
        return screenType;
    }

    /**
     * 重力感应监听者
     */
    public class OrientationSensorListener implements SensorEventListener
    {
        private static final int _DATA_X = 0;
        private static final int _DATA_Y = 1;
        private static final int _DATA_Z = 2;

        public static final int ORIENTATION_UNKNOWN = -1;

        private Handler rotateHandler;

        public OrientationSensorListener(Handler handler)
        {
            rotateHandler = handler;
        }

        public void onAccuracyChanged(Sensor arg0, int arg1)
        {
        }

        public void onSensorChanged(SensorEvent event)
        {
            float[] values = event.values;
//            Logger.t("screentest").d(Arrays.toString(values));
            int orientation = ORIENTATION_UNKNOWN;
            float X = -values[_DATA_X];
            float Y = -values[_DATA_Y];
            float Z = -values[_DATA_Z];
            float magnitude = X * X + Y * Y;
            // Don't trust the angle if the magnitude is small compared to the y
            // value
            if (magnitude * 4 >= Z * Z)
            {
                // 屏幕旋转时
                float OneEightyOverPi = 57.29577957855f;
                float angle = (float) Math.atan2(-Y, X) * OneEightyOverPi;
                orientation = 90 - (int) Math.round(angle);
                // normalize to 0 - 359 range
                while (orientation >= 360)
                {
                    orientation -= 360;
                }
                while (orientation < 0)
                {
                    orientation += 360;
                }
            }
            if (rotateHandler != null)
            {
                rotateHandler.obtainMessage(888, orientation, 0).sendToTarget();
            }
        }
    }

    public class OrientationSensorListener1 implements SensorEventListener
    {
        private static final int _DATA_X = 0;
        private static final int _DATA_Y = 1;
        private static final int _DATA_Z = 2;

        public static final int ORIENTATION_UNKNOWN = -1;

        public OrientationSensorListener1()
        {
        }

        public void onAccuracyChanged(Sensor arg0, int arg1)
        {
        }

        public void onSensorChanged(SensorEvent event)
        {
            float[] values = event.values;
            int orientation = ORIENTATION_UNKNOWN;
            float X = -values[_DATA_X];
            float Y = -values[_DATA_Y];
            float Z = -values[_DATA_Z];
            float magnitude = X * X + Y * Y;
            // Don't trust the angle if the magnitude is small compared to the y
            // value
            if (magnitude * 4 >= Z * Z)
            {
                // 屏幕旋转时
                float OneEightyOverPi = 57.29577957855f;
                float angle = (float) Math.atan2(-Y, X) * OneEightyOverPi;
                orientation = 90 - (int) Math.round(angle);
                // normalize to 0 - 359 range
                while (orientation >= 360)
                {
                    orientation -= 360;
                }
                while (orientation < 0)
                {
                    orientation += 360;
                }
            }
//            if (orientation > 225 && orientation < 315) {// 检测到当前实际是横屏
//                if (!isPortrait) {
//                    sm.registerListener(listener, sensor,SensorManager.SENSOR_DELAY_UI);
//                    sm1.unregisterListener(listener1);
//                }
//            } else if ((orientation > 315 && orientation < 360) || (orientation > 0 && orientation < 45)) {// 检测到当前实际是竖屏
//                if (isPortrait) {
//                    sm.registerListener(listener, sensor,SensorManager.SENSOR_DELAY_UI);
//                    sm1.unregisterListener(listener1);
//                }
//            }
        }
    }
}
